by Dr. Arthur M. Whitehill $7.00
by Prijono Tjiptoherijanto, S.E, M.A, Ph.D $7.00
by Drs. Husein Umar, S.E., M.M., MBA $13.00
by Agusnawar, Amd. Par. $6.00
by Ir. Respati $7.00
by - $16.00